Epiroc EC Series Seal Kit For Hydraulic Hammer Oil Leakage And Pressure Recovery

Product Introduction

The Epiroc EC Series Seal Kit For Hydraulic Hammer Oil Leakage And Pressure Recovery is designed for excavator-mounted hydraulic breaker repair, oil leakage control, pressure restoration, and regular hammer maintenance. It is suitable for Epiroc EC Series hydraulic breakers, including common models such as EC40T, EC60T, EC70T, EC80T, EC90T, EC100T, EC120T, EC135T, EC140T, EC150T, EC155T, EC165T, and EC180T.

A seal kit is one of the most important repair parts inside a hydraulic breaker hammer. During demolition, quarrying, mining, road construction, trenching, and concrete breaking, the hammer works under high hydraulic pressure, repeated impact vibration, oil temperature changes, and continuous movement of internal parts. The seal kit helps prevent hydraulic oil leakage, maintain pressure stability, protect the piston and cylinder, and support smooth impact performance.

When the seals become worn, hardened, cracked, aged, or damaged, the hydraulic breaker may show oil leakage, weak impact, unstable frequency, abnormal heat, pressure loss, slow response, or reduced breaking efficiency. Replacing the damaged seal kit in time can help restore hydraulic pressure, reduce oil waste, protect internal components, and extend the service life of the breaker hammer.

This product is an aftermarket replacement seal kit compatible with Epiroc EC Series hydraulic breakers. The Epiroc name and EC model references are used only for compatibility identification.

Material

Our Epiroc EC Series hydraulic breaker seal kits are supplied with different sealing materials according to the sealing position, working pressure, and model requirements. Common materials include FKM, PU, NBR, PTFE, rubber, O-rings, oil seals, backup rings, dust seals, and support rings.

FKM is used for positions that require oil resistance, heat resistance, and chemical stability. It is suitable for hydraulic breaker environments where the seal must resist hydraulic oil and temperature changes.

PU is widely used in high-pressure and dynamic sealing positions. It offers good wear resistance, elasticity, and pressure resistance, making it suitable for moving parts inside the hydraulic hammer.

NBR is a common oil-resistant rubber material used in general hydraulic sealing applications. It provides practical performance and cost efficiency for many seal positions.

PTFE has low friction and good chemical resistance. It is often used for guide rings, backup rings, and positions that require smooth movement and stable sealing support.

A correct material combination is important because different sealing positions inside the breaker have different pressure, friction, and temperature requirements.

Product Features

The Epiroc EC Series seal kit is designed to help recover the sealing performance of the hydraulic hammer. It works together with the piston, cylinder, back head, front head, diaphragm, accumulator system, and hydraulic oil circuit. When the sealing system works properly, the breaker can maintain stronger pressure support and more stable impact power.

Accurate size is one of the most important features of a seal kit. If the seal is too large, too small, too hard, or incorrectly matched, installation may become difficult and leakage may continue after repair. A properly matched seal kit helps reduce internal oil loss, protect the piston surface, and improve the working condition of the cylinder.

A good seal kit should have oil resistance, pressure resistance, wear resistance, heat resistance, and stable elasticity. It should also help reduce friction and prevent hydraulic oil contamination. For repair workshops, correct seal selection can improve repair quality and reduce repeated maintenance problems.

This seal kit is suitable for regular maintenance, urgent oil leakage repair, hydraulic hammer rebuild projects, and spare parts stock. It can also be supplied together with pistons, cylinders, diaphragms, chisels, bushings, rod pins, side bolts, through bolts, front heads, back heads, buffers, and wear plates.

Main Advantages

The main advantage of the Epiroc EC Series hydraulic breaker seal kit is fast sealing system recovery. When a hydraulic hammer starts leaking oil or losing pressure, the seal kit is often one of the first parts to inspect. Replacing the damaged seals can help the breaker return to stable working condition.

For demolition contractors, a stable seal system helps the breaker maintain impact force when working on reinforced concrete, foundations, road surfaces, and bridge structures. For quarry and mining customers, reliable sealing is important during long working hours and heavy rock breaking conditions.

Timely seal kit replacement can also protect high-value internal parts. If the breaker continues working with damaged seals, hydraulic oil leakage may damage the piston, cylinder, diaphragm, accumulator system, and other internal parts. This may lead to higher repair costs and longer downtime.

For spare parts dealers and repair workshops, seal kits are common and fast-moving maintenance products. Keeping correct Epiroc EC Series seal kits in stock can help complete repairs faster and provide better service to end users.

Why Choose Us

Customers choose us because we focus on hydraulic breaker aftermarket spare parts and model matching support. We supply seal kits, pistons, cylinders, diaphragms, chisels, inner bushes, outer bushes, rod pins, side bolts, through bolts, front heads, back heads, buffers, wear plates, and other hydraulic breaker repair components.

For Epiroc EC Series seal kits, we can help customers confirm the correct model before production or shipment. If the customer is not sure about the correct seal kit, they can provide the breaker model, nameplate photo, old seal kit photo, seal dimensions, cylinder size, piston size, drawings, samples, or part numbers. We can help check the matching details to reduce wrong orders.

We support hydraulic breaker repair workshops, spare parts distributors, equipment rental companies, construction contractors, quarry operators, mining service suppliers, and maintenance teams. Whether customers need one seal kit for urgent leakage repair or multiple models for stock, we can provide flexible support.

Customization is available for packaging, labels, material selection, mixed parts orders, neutral packing, customer branding, and export-ready supply.

Applications

The Epiroc EC Series Seal Kit is widely used in:

• Hydraulic breaker oil leakage repair

• Hydraulic hammer pressure recovery

• Excavator breaker maintenance

• Piston and cylinder sealing system service

• Demolition hammer repair

• Quarry and mining breaker maintenance

• Road construction breaker rebuild

• Concrete breaking equipment repair

• Hydraulic breaker spare parts stock

Parameter Table

FAQ

Q1: Is this seal kit an original Epiroc part?
No. This is an aftermarket replacement seal kit compatible with Epiroc EC Series hydraulic breakers. The Epiroc name and EC model references are used only for compatibility identification.

Q2: What is the function of a hydraulic breaker seal kit?
The seal kit helps prevent hydraulic oil leakage, maintain pressure stability, protect the piston and cylinder, and support stable breaker impact performance.

Q3: What materials are used in the seal kit?
Common materials include FKM, PU, NBR, PTFE, rubber, oil seals, O-rings, dust seals, backup rings, and support rings.

Q4: When should I replace the seal kit?
The seal kit should be replaced when the breaker has oil leakage, weak impact, pressure loss, unstable frequency, abnormal heat, or during regular overhaul and rebuild.

Q5: Can a new seal kit solve all leakage problems?
A new seal kit can solve leakage caused by worn or damaged seals. If the piston, cylinder bore, sealing surface, or accumulator system is damaged, those parts should also be inspected.

Q6: How can I confirm the correct seal kit model?
You can provide the breaker model, nameplate photo, old seal kit photo, seal dimensions, piston size, cylinder size, drawings, samples, or part numbers. We can help confirm before shipment.

Q7: Can I order seal kits with other breaker parts?
Yes. Seal kits can be supplied together with pistons, cylinders, diaphragms, chisels, bushings, rod pins, side bolts, through bolts, front heads, back heads, buffers, and wear plates.